/*
 * Copyright (c) 2020 - present, Inspur Genersoft Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.inspur.edp.bff.designtime.generator.core.rtgen.managergenerator.mgrImplclass.methodgenerators.getdataconvertormethod;

import com.inspur.edp.bff.api.dataprocessor.IDataConvertor;
import com.inspur.edp.bff.designtime.generator.core.rtgen.managergenerator.mgrImplclass.FSMgrImplGenContext;
import com.inspur.edp.caf.generator.baseInfo.ParameterInfo;
import com.inspur.edp.caf.generator.baseInfo.TypeInfo;
import com.inspur.edp.caf.generator.method.ClassMethodGenerator;
import com.inspur.edp.caf.generator.method.ClassMethodGeneratorContext;
import org.eclipse.jdt.core.dom.Block;
import org.eclipse.jdt.core.dom.ClassInstanceCreation;
import org.eclipse.jdt.core.dom.Modifier;
import org.eclipse.jdt.core.dom.ReturnStatement;

import java.util.ArrayList;
import java.util.Arrays;

public class GetDataConvertorMethodGenerator extends ClassMethodGenerator
{
	private FSMgrImplGenContext mgrImplGenContext;
	public GetDataConvertorMethodGenerator(FSMgrImplGenContext mgrImplGenContext)
	{
		super();
		this.mgrImplGenContext = mgrImplGenContext;
	}

	@Override
	protected ClassMethodGeneratorContext createClassMethodInfoContext()
	{
		return new GetDataConvertorMethodGenContext(mgrImplGenContext);
	}

	@Override
	protected Block buildMethodBody() {
		Block block=ast.newBlock();
		ReturnStatement returnStatement=ast.newReturnStatement();
		TypeInfo convertorType = GetConvertorType();
		if(convertorType==null)
		{
			returnStatement.setExpression(ast.newNullLiteral());
		}
		else
		{
			ClassInstanceCreation classInstanceCreation=ast.newClassInstanceCreation();
			classInstanceCreation.setType(convertorType.getType(ast, mgrImplGenContext.getMgrGenContext().getFSGeneratorContext()));
			returnStatement.setExpression(classInstanceCreation);
		}
		block.statements().add(returnStatement);
		return block;
	}

	private TypeInfo GetConvertorType()
	{
		if(mgrImplGenContext.getMgrGenContext().getFSGeneratorContext().getVmGenContext().getVm().getIsVirtual())
			return null;
		return mgrImplGenContext.getMgrGenContext().getFSGeneratorContext().getVmGenContext().getDataConvertorType();
	}

	@Override
	protected boolean getIsOverride() {
		return true;
	}

	@Override
	protected ArrayList<Modifier.ModifierKeyword> getAccessModifiers() {
		return new ArrayList<>(Arrays.asList(new Modifier.ModifierKeyword[]{Modifier.ModifierKeyword.PROTECTED_KEYWORD}));
	}

	@Override
	protected String getMethodName()
	{
		return "getDataConvertor";
	}

	@Override
	protected ArrayList<ParameterInfo> getParameterCollection() {
		return null;
	}

	@Override
	protected TypeInfo getReturnType() {
		return new TypeInfo(IDataConvertor.class);
	}

}
